class Test {
    public static void main(String [] args) {
        String str[][] = new String[3][4];
        System.out.println("str.length = " + str.length);
        System.out.println("str[0].length = " + str[0].length);
        System.out.println("str[0][0].length = " + str[0][0].length);
    }
}
